E46Fanatics - View Single Post - Loud vibrating noise while car is idling
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Old 01-11-2013, 10:49 AM   #4
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 3,682
My Ride: 4cyl of fury
Originally Posted by Kubica View Post
I bet it's either the exhaust bracket at the flange to the headers, or an exhaust hanger.

Do get a friend to inspect it while holding the brakes. A toddler should work nicely.
This and change out your engine mounts. I had the same problem on my Expedition. It was unsurprisingly easier to get under that car and see what was up. Also clean your MAF, idle control valve, and intake air temp sensor with some MAF cleaner. Should smooth out your rough idle.

Last edited by SamDoe1; 01-11-2013 at 10:49 AM.
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